The Intertidal Macrobenthic Community in the Shankou Mangrove Reserve

Abstract

Based on the survey data in July 2020, the paper investigated the distribution characteristics and species diversity of the intertidal macrobenthic community in the Shankou Mangrove Reserve. A total of 52 species of macrobenthic animals in 7 phyla and 9 orders were recorded in this survey, mainly arthropods and mollusks. Chasmagnathus convexus, Paracleistostoma depressum, Gelonia coaxans, etc. were ranked as the top ten dominant species in the area. The average biomass and average density of macrobenthos were 81.17 g/m2 and 54 ind/m2, with Arthropods accounting for 43.70% and 80.09% of the total. Arthropods contributed the most to the community density. The diversity index of the macrobenthic community ranged from 0.86 to 2.52. Cluster analysis and multidimensional scale analysis could classify the communities into 3 types. Species diversity levels of the intertidal macrobenthic community in the Shankou Mangrove Reserve were low compared with other mangrove areas in China.

Keywords

• intertidal zone
• macrobenthos
• community structure
• diversity
• mangroves